JP2000172243A - Display device and display method and storage medium storing display control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To coexistingly display a window screen in which picture data having the stipulated number of pixels and a window screen in which picture data are expanded to the stipulated number of pixels and the data are displayed by displaying the picture data having the stipulated number of pixels and the picture data having the expanded number of pixels separately on respective window screens. SOLUTION: At first, the display control program of a central control part 8 displays a window screen having the stipulated number of pixels on a display part 2-1. Next, it obtains picture data of various applications consisting of different numbers of pixels to store the picture data in a picture data storage part 11-1. Moreover, it detects the number of pictures from attribute data added to the picture data to judge whether the number of pixels is smaller than the stipulated number of pixels which is previously stored in a stipulated number of pixels storage part 11-3 or not, Then, it controls the display part 2-1 so as expand the picture data whose number of pixels is smaller than the stipulated number of pixels to picture data having the stipulated number of pixels and to display the picture data having the stipulated number of pixels and the picture data having the expanded number of pixels separately on respective window screens.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device and a display method for converting image data having different numbers of pixels into image data having a specified number of pixels for display, and a storage medium storing a display control program.

[0002]

2. Description of the Related Art Conventionally, in a liquid crystal display device, when display data having a resolution lower than that of a liquid crystal panel is input, there is a problem that the display data becomes difficult to see. According to Japanese Patent Application Laid-Open No. H10-83168, a liquid crystal display capable of enlarging and displaying a low-resolution video signal (image data) on a high-resolution liquid crystal panel according to the description of Japanese Patent Application Laid-Open No. H10-83168 to solve this problem A device has been proposed.

This liquid crystal display device is configured, for example, as follows. For one pixel, display data for one pixel is simply enlarged to two pixels. The adjacent display data is operated by the horizontal operation circuit and the vertical operation circuit to add a weighting process to the adjacent display data to create a pixel to be interpolated. -The image represented by the low-resolution display data is enlarged and displayed normally, and the selection of the gate lines is performed one by one so that a liquid crystal panel in which a plurality of gate lines cannot be selected at the same time can be used. Is performed without transferring the display data. That is, when display data having a resolution smaller than the resolution of the liquid crystal panel is input, the number of display data to be output to the liquid crystal panel is increased and displayed in the horizontal direction, and the number of lines of the display data is increased. To enlarge the image vertically.

FIG. 8 is a diagram showing an example of image data enlargement processing according to the conventional technique 2. Further, in the related art 2, for example, even when a character code is included in low-resolution image data, a character is enlarged in dot units as dot data. Therefore, as shown in FIG. 8, for example, when the characters of the original image data 30 are enlarged as the characters of the image data 31, they are displayed jagged.

[0005]

However, in the prior art 1, when enlarging / reducing predetermined image data, the enlarging / reducing ratio is adjusted by changing the number of rows to which the selection voltage is applied in the scanning drive circuit. Therefore, it is necessary to previously set the number of voltage application rows in accordance with the enlargement / reduction ratio. For this reason, image data of different resolutions cannot be mixedly displayed. Further, in the prior art 2,
Since characters are enlarged in dot units as dot data, there is a problem that the enlarged characters are jagged and difficult to see.

The present invention has been made in view of the above circumstances, and a window screen for displaying image data having a specified number of pixels and a window for displaying image data having a number of pixels smaller than the specified number of pixels in an enlarged manner to the specified number of pixels. Font data with a character size close to the magnification when the image data with the specified number of pixels is included, if the character code is included in the image data with less than the specified number of pixels. A display device and a display method for replacing and displaying a display program and a storage medium storing a display control program are provided.

[0007]

According to the present invention, there is provided a display unit for displaying a window screen having a specified number of pixels, an obtaining unit for obtaining image data of various applications having different numbers of pixels,
An image data storage unit that stores the image data, a pixel number detection unit that detects the number of pixels from attribute data added to the image data, and a specified pixel number that is stored in the specified pixel number storage unit in advance. A number-of-pixels determining unit that determines whether the number of pixels is smaller than a predetermined number of pixels, an enlargement processing unit that enlarges image data smaller than the specified number of pixels into image data of the specified number of pixels, and image data having the specified number of pixels and the number of expanded pixels. And a display control unit for controlling the display unit to display the image data for each window screen.

In the present invention, the display section may be constituted by, for example, a liquid crystal display panel (LCDP), a plasma display panel (PDP), or the like. The acquisition unit may be configured by, for example, a communication device, a digital camera, or the like. The image data storage unit and the prescribed number of pixels storage unit
For example, it may be configured by a RAM, a ROM, an EEPROM, a floppy disk, an MD, a hard disk, or the like.
The pixel number detection unit, the pixel number determination unit, the enlargement processing unit, and the display control unit may be configured by, for example, a computer CPU and a control program.

According to the present invention, a window screen displaying image data of a specified number of pixels and a window screen displaying image data smaller than the specified number of pixels enlarged to the specified number of pixels can be displayed in a mixed manner. it can. Even if the user obtains image data having different numbers of pixels (resolution) for each application, the user can display a plurality of image data having different numbers of pixels mixedly for each window screen without being aware.

A character detection unit for receiving from the pixel number determination unit a determination that the number of pixels of the image data stored in the image data storage unit is smaller than a prescribed number of pixels, and detecting font data and its character code from the image data; A font size detection unit that detects a font size corresponding to a character code from attribute data added to the image data, a font data storage unit that stores font data of various font sizes corresponding to the character codes in advance, A font replacement unit that searches the font data storage unit for font data having a font size close to the magnification when the enlargement processing unit enlarges the image data to the specified number of pixels from the font data storage unit and replaces the font data with the font data of the image data. It may be configured.

In this configuration, the character detecting section, the font size detecting section, and the font replacing section may be constituted by, for example, a CPU of a computer and a control program. The font data storage unit may be composed of, for example, a ROM, an EEPROM, a floppy disk, an MD, a hard disk, or the like. According to this configuration, when the font data (character) is included in the image data smaller than the prescribed number of pixels, the font data of the font size (character size) close to the magnification when the image data is enlarged to the prescribed number of pixels of the image data Is displayed, characters that are easy to read can be displayed in comparison with characters enlarged in dot units.

The specified number of pixels is the number of pixels of the VGA screen, and the number of pixels smaller than the specified number of pixels is determined to be the number of pixels of the QVGA screen. In this configuration,
In order to determine the number of pixels of the image data, a specified pixel number storage unit stores a VGA (Video Graphics Arr
ay) The number of pixels on the screen (640 × 480 dots) and QVG
A (Quarter Video Graphics Array) screen pixel count (3
20 × 240 dots) are stored. According to this configuration, when displaying the image data of the number of pixels of the QVGA screen, the image data of the number of pixels of the VGA screen can be automatically enlarged and displayed.

According to another aspect of the present invention, a window screen having a specified number of pixels is displayed on a display unit, and image data of various applications having different numbers of pixels is obtained using an obtaining unit. The number of pixels is stored in the data storage unit, and the number of pixels is detected from the attribute data added to the image data using the pixel number detection unit, and the number of pixels is smaller than the specified number of pixels stored in the specified pixel number storage unit in advance. Is determined using a pixel number determination unit, the image data smaller than the specified number of pixels is enlarged to image data of the specified number of pixels using an enlargement processing unit, and the image of the specified number of pixels is used using the display control unit. A display method is provided, wherein the display unit is controlled to display data and image data of an enlarged number of pixels for each window screen.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to the embodiments shown in the drawings. Note that the present invention is not limited by this.

FIG. 1 is a perspective view showing the appearance of an information processing apparatus to which the present invention is applied. In FIG. 1, 1 is a main body cabinet, 2 is an input / output unit, and 3 is a lid. The main body cabinet 1 includes an input / output unit 2 having a display unit such as an LCD (liquid crystal display) or a PD (plasma display) and a transparent tablet, an infrared communication unit (not shown), a pen, and a main body. Has a power switch, etc.
The control unit includes an input / output unit 2, an infrared communication unit, a control circuit for controlling a pen, an interface, a power supply unit for supplying a drive voltage to each unit, and the like. The lid 3 is connected to the rear surface of the main body cabinet 1 by a hinge, pivots so as to cover the input / output unit 2, and plays a role of protecting the input / output unit 2 when being carried.

FIG. 2 is an exploded view showing a configuration of an input / output unit of an information processing apparatus to which the present invention is applied. In FIG. 2, an input / output unit 2 is composed of a liquid crystal display unit 2-1 formed of a thin matrix type capable of displaying characters and a transparent tablet unit 2-2 having a size covering the liquid crystal display unit 2-1. It has become. In addition, a backlight made of an EL panel or the like may be provided on the back surface of the liquid crystal display unit 2-1 as necessary.

The transparent tablet section 2-2 is provided with, for example, transparent electrodes on the inner surface of two transparent sheets. In a normal state, small protruding spacers are regularly printed so that the electrodes do not come into contact with each other. The transparent electrode comes into contact with an instruction by a finger or a pen, and the selected position is detected.

Reference numeral 2-3 denotes a film in which the functions of the frequently used fixed keys are printed with easy-to-understand symbols, and the film 2-3 includes the liquid crystal display unit 2-1 and the transparent tablet unit 2.
And the transparent tablet unit 2-2 operates as a fixed key in an area corresponding to the symbol. Also, by synchronizing the display content displayed on the liquid crystal display unit 2-1 with the position information of the transparent tablet unit 2-2, the position of the liquid crystal display unit 2-1 selected by the user can be detected. It is.

FIG. 3 is a block diagram showing the overall configuration of an information processing apparatus to which the present invention is applied. 3, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals. The liquid crystal display unit 2-1 and the transparent tablet 2- constituting the input / output unit 2
The configuration and function of No. 2 have been described with reference to FIG.

Reference numeral 4 denotes a tablet control unit for extracting coordinate information from the transparent tablet 2-2. The tablet control unit 4 displays a position indicated by a finger or a pen on the transparent tablet 2-2. Coordinate detection is performed by contact between the two transparent electrodes provided on the transparent sheet 2-2.

Reference numeral 5 denotes a liquid crystal display circuit section. The liquid crystal display circuit section 5 functions as a display control section for controlling the liquid crystal display section 2-1, and stores a dot position for turning on the liquid crystal element as a bit map. Signals are sent to a common circuit (X coordinate electrode drive circuit) 6 and a segment circuit (Y coordinate electrode drive circuit) 7 as needed.

Reference numeral 8 denotes a central control unit composed of a computer including a CPU, a ROM, a RAM, and an I / O port. The central control unit 8 operates according to various instructions stored in the ROM, as described below. ROM10, RA
M11, the liquid crystal display unit 2-2, and the communication unit control unit 13 are controlled. Further, as described in FIG. 4, the central control unit 8 includes a pixel number detection unit 8-1, a pixel number determination unit 8-2, a magnification calculation unit 8
-3, functions as an enlargement processing unit 8-4, a character detection unit 8-5, a font size detection unit 8-6, and a font replacement unit 8-7.

Reference numeral 9 denotes an RTC (real time clock) for measuring time by a clock signal from an oscillator (not shown). The RTC 9 outputs the current date and time to the central control unit 8. .

Reference numeral 10 denotes a ROM. A ROM 11 includes a font data storage unit 10-1 storing font data of character codes to be displayed on the liquid crystal display unit 2-1, and a central control unit 8.
Is a program storage unit 10-2 storing a program for controlling the apparatus, a dictionary storage unit 10-3 storing a dictionary for character conversion, and displays coordinates detected by the tablet control unit 4 at display positions (icons, A coordinate conversion data storage unit 1 storing conversion data for converting to coordinates of a (fixed key)
0-4 and the like. The font data storage unit 10-1 stores font data of various font sizes.

Reference numeral 11 denotes a RAM. The RAM 11 is an image data storage unit 11-for storing texts and graphics input by the user from the input / output unit and various image data input from the communication unit.
1, a program storage unit 11-2 for storing a control program installed from the storage medium 15 by using a program reading unit (not shown), a specified pixel number storage unit 11- for storing a specified number of pixels of image data to be displayed on a screen. 3. It has a magnification storage unit 11-4 for storing a magnification obtained by comparing the number of pixels of the acquired application image data with the specified number of pixels.

For example, image data of an application for a personal computer is used in a graphic system called a VGA (Video Graphics Array) having a pixel number of 640 × 480 dots, and application image data for a portable information terminal is a QVGA (Quarter). Video Graphics
Array), which is used in a graphic system composed of 320 × 240 dots. Therefore,
The number of pixels of the image data of the application acquired via the communication unit includes the number of pixels of the VGA screen and the number of pixels of the QVGA screen.

In the case of the present embodiment, the specified pixel number storage unit 11-3 stores the specified number of pixels as 640 × of the VGA screen.
The number of pixels of 480 dots and the number of pixels of the QVGA screen (32
0 × 240 dots).

Reference numeral 12 denotes a communication unit. The communication unit 12 is connected to a communication line / Internet under the control of the communication control unit 13, for example, and transmits and receives electronic mail and image data of an application. The communication unit 12 functions as an acquisition unit that acquires image data of various applications having different numbers of pixels. A configuration further including a digital camera (CCD camera) as an acquisition unit for acquiring image data may be adopted. Reference numeral 14 denotes a power switch of the main body. By operating the power switch 8 of the main body, the power built in the main body is turned off.
N / OFF.

Reference numeral 15 denotes a storage medium that is configured to be separable from the main body. The storage medium 15 includes, for example, a CD-ROM, a floppy disk, an IC card, or the like, and a main body cabinet unit that includes a nonvolatile storage unit. One program storage unit 11-2 stores an executable program to be read and executed, a source program for constructing the executable program, and an intermediate program.

The ROM 10 of the main body cabinet 1
If the display control program of the present invention is not installed in advance, the display control program of the present invention is read from the storage medium 15 by using a program reading means (not shown), and the execution program code is stored in the program storage unit 11-2 of the RAM 11. Alternatively, the data may be stored in the image data storage unit 11-1 of the RAM 11 respectively.

For example, the computer of the central control unit 8
A window screen having a specified number of pixels is displayed on the display unit 2-1, image data of various applications having different numbers of pixels is obtained, and the image data is stored in the image data storage unit 1.
1-1, the number of pixels is detected from the attribute data added to the image data, and whether the number of pixels is smaller than the specified number of pixels stored in the specified number of pixels storage unit 11-3 in advance is determined. The display unit 2-1 makes a determination, enlarges image data smaller than the specified number of pixels to image data of the specified number of pixels, and displays the image data of the specified number of pixels and the image data of the expanded number of pixels on a window screen basis. Is stored in the storage medium 15.

The liquid crystal display unit 2-1 and the transparent tablet unit 2-
And a window screen displaying image data of a specified number of pixels by reading the display control program of the storage medium 15 into the program storage unit 11-2 of the RAM 11 of the information processing apparatus including Can be provided with a display device capable of displaying a window screen in which is enlarged to a specified number of pixels and displayed together.

FIG. 4 is a block diagram showing a functional configuration of the information processing apparatus according to the present embodiment. In FIG. 4, the central control unit 8 includes a pixel number detection unit 8-1, a pixel number determination unit 8-2, a magnification calculation unit 8-3, an enlargement processing unit 8-4, and a character detection unit 8-.
5. Font size detection unit 8-6, font replacement unit 8-
Function as 7. The central control unit 8 acquires image data of a plurality of applications having different numbers of pixels via the communication unit 12 and stores the acquired image data in the image data storage unit 11-1.

The pixel number detector 8-1 reads out the image data of the application from the image data storage 11-1 and detects the number of pixels of the image data from the attribute data added to the image data.

The image size determination unit 8-2 refers to the number of pixels (image size) of VGA and QVGA stored in the specified number of pixels storage unit 11-3, for example, the number of pixels of image data to be displayed on the screen. Is smaller than the specified number of pixels of the VGA.

If the image data is the number of VGA pixels, the pixel number judging section 8-2 sends a signal designating the specified number of VGA pixels to the liquid crystal display circuit section 5, and the liquid crystal display circuit section 5
The image data is displayed on the liquid crystal display unit 2-1 with the specified number of pixels. Also, if the image data is smaller than the number of pixels of the VGA, Q
In the case of image data having the number of pixels of VGA, the pixel number determination unit 8-
2 outputs a signal indicating that the number is smaller than the number of pixels of the VGA to the magnification calculator 8-3 and the character detector 8-5.

For example, when the number of pixels is QVGA, the magnification calculator 8-3 calculates the number of pixels of VGA (640 × 480 dots) stored in the specified pixel number storage 11-3 and QVG.
Read out the number of pixels of A (320 × 240 dots), VG
The enlargement magnification of the number of pixels of QVGA with respect to the number of pixels of A is calculated and stored in the magnification storage unit 11-4. Here, VGA
The enlargement magnification of the number of pixels of the QVGA with respect to the number of pixels is twice in the vertical and horizontal directions.

The enlargement processing section 8-4 includes a magnification storage section 11-4.
The image data of the application is enlarged on the basis of the enlargement magnification read out from the CPU, and the enlarged image data of the application is transmitted to the liquid crystal display circuit unit 5. The liquid crystal display circuit unit 5 controls the liquid crystal display unit 2-1 so as to display the image data of the specified number of pixels and the image data of the enlarged number of pixels for each window screen.

FIG. 5 is a diagram showing an example of display processing of image data having two types of pixels according to the present embodiment. As shown in FIG. 5, image data 16 and 17 of two applications composed of VGA image data and image data 18 of an application composed of QVGA image data are composed of VGA prescribed number of pixels (640 × 480 dots). This shows a state in which images are mixedly displayed for each window screen.

First, the number of vertical and horizontal pixels for the image data of each application to be displayed is detected. The specified pixel number storage unit 11-3 stores the number of vertical and horizontal pixels (640 × 480 dots) of VGA image data as the specified number of pixels, and compares the detected number of pixels with the specified number of pixels.

As a result of comparison with the specified number of pixels, image data 1
6 and 17 are the same as the number of vertical and horizontal pixels of the VGA image data, and are displayed as they are. The image data 18 is Q
Since the image data is VGA image data, it can be seen that the number of vertical and horizontal pixels is small.

When the number of vertical and horizontal pixels is smaller than the specified number of pixels, the magnification calculator 8-3 calculates the magnification for enlarging the vertical and horizontal pixels by dividing the specified number of pixels by the detected number of pixels. I do. In this case, since the image is a QVGA image, the specified number of pixels of 640 × 480 dots is changed to 320 × 480 pixels.
Divide by 240 dots to calculate a 2 × 2 magnification.
The enlargement processing section 8-4 enlarges the QVGA image data 18 based on the magnification calculated by the magnification calculation section 8-3 and displays the image data 19 as image data 19.

When the character detection unit 26 receives from the pixel number determination unit 8-2 a determination that the number of pixels of the image data stored in the image data storage unit 11-1 is smaller than the specified number of pixels, the image data storage unit It is determined by searching the character code whether the font data (text data) is included in the image data of the application stored in 11-1.

The font size detector 8-6 detects a font size corresponding to a character code from attribute data included in image data of an application. The font data storage unit 10-1 stores font data of various font sizes corresponding to character codes in advance.

The font replacement unit 8-7 includes a magnification storage unit 11
-4 based on the magnification (2 × 2) stored in
A font size close to the magnification when the enlargement processing unit enlarges the image data to the specified number of pixels is obtained. Then, font data having a font size corresponding to the enlargement magnification is retrieved from the font data storage unit 10-1, replaced with the font data of the image data, and transmitted to the enlargement processing unit 8-4.

The enlargement processing section 8-4 includes a font replacement section 8-
The font data of the font size replaced by 7 is sent to the liquid crystal display circuit section 5. The liquid crystal display circuit section 5 displays on the liquid crystal display section 2-1 font data having a font size close to the magnification when the image data is enlarged to the image data of the specified number of pixels.

FIG. 6 is a diagram showing an example of font data enlargement processing according to this embodiment. As shown in FIG. 6, characters of 8 points in font size (font data) displayed as image data 20 are replaced with 16-point characters, and characters of 16-point font size are replaced with 32-point characters. It is displayed as image data 21. Therefore, when characters (font data) are included in the image data having a smaller number of pixels, the characters are replaced with font data having a font size close to the magnification when the image data is enlarged to the specified number of pixels. In addition, characters that are easy to see can be displayed as compared with characters enlarged in dot units.

FIG. 7 is a flowchart showing the procedure of the display processing of image data having different numbers of pixels according to this embodiment.
In FIG. 7, STEP 1: start a desired application. STEP 2: The number of pixels of the image data of the activated application is detected from the attribute data added to the image data.

STEP 3: Referring to the VGA and QVGA pixel numbers stored in the specified pixel number storage section 11-3, determine whether the detected pixel number is smaller than the VGA specified pixel number (640 × 480 dots). to decide. If the number of detected pixels is smaller than the prescribed number of pixels of VGA, STEP
Go to step 5, otherwise go to step 4. STEP 4: Normally display the image data and end the process. STEP 5: An enlargement magnification of the detected number of pixels with respect to the specified number of pixels (the specified number of pixels / the number of detected pixels) is calculated and stored in the magnification storage unit 11-4. STEP 6: Based on the contents of the magnification storage section 11-4, the image data is enlarged and displayed on the image data having the specified number of pixels.

STEP 7: It is checked whether or not a character code is included in the image data of the application. By checking the presence or absence of the character code, it is determined whether or not the font data is included in the image data. If the image data of the application contains characters, STEP8
Otherwise, to STEP11. STEP 8: Detect the font size of the font data from the detected character code.

STEP 9: The font size (point number) of the character to be enlarged is calculated based on the enlargement magnification (2 × 2) stored in the magnification storage section 11-4. STEP10: Based on the calculated font size and the previously detected character code, the font data storage unit 10-1
Read font data (characters) to be enlarged from. STEP11: If a character is detected in STEP7, the detected character is replaced with the character read in STEP10 and displayed. Actually, the processing of STEP 7 and ST
The processing of EP11 is performed simultaneously.

Here, the image data of QVGA is enlarged by 2 × 2 and displayed in the same manner as the image data of VGA, but the target image data is VGA or QVG.
The image data of the application having any number of pixels can be handled by calculating the magnification, not limited to A.
Therefore, even if the number of pixels (resolution) of the image data of the application for the personal computer and the image data of the application for the portable information terminal are different on a personal computer or the like, they can be mixedly displayed on a screen having the same number of pixels.

[0053]

According to the present invention, a window screen displaying image data of a specified number of pixels and a window screen displaying image data smaller than the specified number of pixels enlarged to the specified number of pixels are mixedly displayed. be able to. Therefore, even if the user acquires image data having different numbers of pixels (resolution) for each application, a plurality of types of image data can be mixed and displayed for each window screen without being conscious.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of an information processing apparatus to which the present invention has been applied.

FIG. 2 is an exploded view showing a configuration of an input / output unit of the information processing apparatus to which the present invention has been applied.

FIG. 3 is a block diagram illustrating an overall configuration of an information processing apparatus to which the present invention has been applied.

FIG. 4 is a block diagram illustrating a functional configuration of the information processing apparatus according to the embodiment;

FIG. 5 is a diagram showing an example of display processing of image data having two types of pixels according to the embodiment.

FIG. 6 is a diagram showing an example of font data enlargement processing according to the embodiment.

FIG. 7 is a flowchart showing a process according to the present invention.

FIG. 8 is a diagram illustrating an example of image data enlargement processing according to the conventional technique 2.

[Description of Signs] 1 Main body cabinet section 2 Input / output section 3 Lid section 4 Tablet control section 5 Liquid crystal display circuit section (display control section) 6 Common circuit 7 Segment circuit 8 Central control section 8-1 Pixel number detection section 8-2 Pixel number determination section 8-3 Magnification calculation section 8-4 Enlargement processing section 8-5 Character detection section 8-6 Font size detection section 8-7 Font replacement section 9 RTC 10 ROM 10-1 Font data storage section 10-2 Dictionary Storage unit 10-3 Program storage unit 10-4 Coordinate conversion data storage unit 11 RAM 11-1 Image data storage unit 11-2 Program storage unit 11-3 Defined pixel number storage unit 11-4 Magnification storage unit 12 Communication unit 13 Communication Control unit 14 Main unit power switch 15 Storage medium

Continued on the front page F term (reference) 5C082 AA01 AA14 AA25 AA37 BA02 BA27 BB12 BB32 BD02 CA02 CA33 CA63 CB01 DA22 DA32 DA53 DA87 DA89 MM10

Claims (6)

[Claims] A display unit for displaying a window screen having a specified number of pixels; an obtaining unit for obtaining image data of various applications having different numbers of pixels; an image data storage unit for storing the image data; A pixel number detection unit that detects the number of pixels from the attribute data added to, and an image number determination unit that determines whether the number of pixels is smaller than a specified number of pixels stored in advance in a specified number of pixels storage unit, An enlargement processing unit for enlarging image data smaller than the specified number of pixels to image data of the specified number of pixels, and a display unit for displaying the image data of the specified number of pixels and the image data of the enlarged number of pixels for each window screen. A display device comprising: a display control unit that controls the display device. 2. A character for detecting font data and its character code from the image data, wherein the pixel number determination unit receives a determination that the number of pixels of the image data stored in the image data storage unit is smaller than a prescribed number of pixels. A detection unit, a font size detection unit that detects a font size corresponding to a character code from attribute data added to the image data, and a font data storage unit that previously stores font data of various font sizes corresponding to the character codes And a font replacement unit that searches the font data storage unit for font data having a font size close to the magnification at which the enlargement processing unit enlarges the image data to the specified number of pixels, and replaces the font data with the font data of the image data. The display device according to claim 1, further comprising: 3. The display device according to claim 1, wherein the specified number of pixels is the number of pixels of a VGA screen, and the number of pixels smaller than the specified number of pixels is the number of pixels of a QVGA screen. 4. A window screen having a specified number of pixels is displayed on a display unit, image data of various applications having different numbers of pixels is obtained using an obtaining unit, and the image data is stored in an image data storage unit. A pixel number detection unit detects the number of pixels from the attribute data added to the image data using a pixel number detection unit, and determines whether the number of pixels is smaller than a specified number of pixels stored in a specified number of pixels storage unit in advance. The image data smaller than the specified number of pixels is enlarged to image data of the specified number of pixels using the enlargement processing unit, and the image data of the specified number of pixels and the A display method, comprising: controlling a display unit to display image data for each window screen. 5. A computer that controls a display device by a program causes a window screen having a specified number of pixels to be displayed on a display unit, obtains image data of various applications having different numbers of pixels, and stores the image data in an image data storage unit. The number of pixels is detected from the attribute data added to the image data, and it is determined whether the number of pixels is smaller than a specified number of pixels previously stored in the specified number of pixels storage unit. Enlarging the smaller image data into image data of a specified number of pixels, and using a display control unit to control the display unit to display the image data of the specified number of pixels and the image data of the expanded number of pixels for each window screen A storage medium storing a display control program characterized by the above-mentioned. 6. A display unit for displaying a window screen having a specified number of pixels, an obtaining unit for obtaining image data of various applications having different numbers of pixels, an image data storage unit for storing the image data, and an image data storage unit. A pixel number detection unit that detects the number of pixels from the attribute data added to, and a pixel number determination unit that determines whether the number of pixels is smaller than a specified number of pixels stored in advance in a specified number of pixels storage unit, An enlargement processing unit for enlarging image data smaller than the specified number of pixels to image data of the specified number of pixels, and a display unit for displaying the image data of the specified number of pixels and the image data of the enlarged number of pixels for each window screen. An information processing apparatus provided with a display device comprising a display control unit for controlling.